I have an Asus 247H monitor which I hooked up to a Gigabyte motherboard's (GA-Z77-D3H) on-board VGA port at first. Soon after I got my hands on an HDMI cable, I tried to replace the VGA one with it. The monitor displays HDMI picture fine from boot-up (BIOS messages/settings) up until Windows 7 loads. After the "Starting Windows" screen the monitor complains "HDMI no signal". I tried unplugging/replugging cables, reinstalling drivers (Intel Graphics HD 4000), but to no avail. Can anyone shed some light on this?
Strangely the HDMI cable starts working every time I re-install Intel VGA driver (the "ding-dong" sound), and is recognized in the device manager and display settings. So VGA and HDMI are selectable as different monitors in the relevant dropdowns. But after I restart, everything goes back to normal... HDMI is not recognized.
It seems to be an Intel driver problem. After uninstalling Intel HD Graphics 4000 driver, HDMI would work. As of now the newest driver from Intel (ver 188.8.131.52.2761) does not fix this.